Feature: Save AI parsing notes with receipt

Store user-provided parsing notes in the database so they persist
across parsing attempts. Notes are displayed in Receipt Information
and pre-populated in the textarea for future parses.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

MoneyMap/Pages/ViewReceipt.cshtml.cs

@@ -39,6 +39,9 @@ namespace MoneyMap.Pages
         [TempData]
         public string? ErrorMessage { get; set; }
 
+        [BindProperty]
+        public string? ParsingNotes { get; set; }
+
         public async Task<IActionResult> OnGetAsync(long id)
         {
             Receipt = await _db.Receipts
@@ -53,6 +56,9 @@ namespace MoneyMap.Pages
             LineItems = Receipt.LineItems?.OrderBy(li => li.LineNumber).ToList() ?? new();
             ParseLogs = Receipt.ParseLogs?.OrderByDescending(pl => pl.StartedAtUtc).ToList() ?? new();
 
+            // Load saved parsing notes
+            ParsingNotes = Receipt.ParsingNotes;
+
             // Get receipt URL for display - use handler parameter
             ReceiptUrl = $"/ViewReceipt/{id}?handler=file";
 
@@ -98,8 +104,8 @@ namespace MoneyMap.Pages
                 return RedirectToPage(new { id });
             }
 
-            // Use the configured model from settings
-            var result = await selectedParser.ParseReceiptAsync(id, SelectedModel);
+            // Use the configured model from settings, pass user notes
+            var result = await selectedParser.ParseReceiptAsync(id, SelectedModel, ParsingNotes);
 
             if (result.IsSuccess)
             {